Experts at the University of Exeter have developed solar power units encased in glass blocks that can be used like a window and integrate seamlessly into a building’s façade.
http://www.greenmatters.com/news/2017/08/18/Z1q0TFa/glass-solar-power?kwp_4=1834286&kwp_1=778840&utm_source=keywee&utm_medium=facebook&kwp_0=511202